March weather forecastHarristown, IL
March
Weather in March
The first month of the spring, March, is a cool month in Harristown, Illinois, with an average temperature fluctuating between 50.5°F (10.3°C) and 35.6°F (2°C).Temperature
March's arrival is marked by an increase in the average high-temperature, moving from a wintry 37.8°F (3.2°C) in February to a cool 50.5°F (10.3°C). During March, Harristown witnesses a consistent average low-temperature of 35.6°F (2°C).Humidity
In Harristown, the average relative humidity in March is 75%.Rainfall
In Harristown, during March, the rain falls for 11.6 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, in Harristown, Illinois, there are 130.2 rainfall days, and 16.34" (415mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Harristown, in March, snow falls for 2.6 days, with typically accumulated 0.98" (25mm) of snow. Throughout the year, there are 23.1 snowfall days, and 5.67" (144mm) of snow is accumulated.Daylight
The average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:28 am and sunset at 5:48 pm CST. On the last day of March, sunrise is at 6:40 am and sunset at 7:19 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In March, the average sunshine in Harristown, Illinois, is 6.4h.UV index
The average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during March leads to these instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Harristown, IL
- Average high temperature in March: 50.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in March: 35.6°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in March
Harristown, IL
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
Harristown, IL
- Average wind speed in March: 10.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in March
Harristown, IL
- Average humidity in March: 75%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in March
Harristown, IL
- Average rainfall in March: 1.3"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").
Average rainfall days in March
Harristown, IL
- Average rainfall days in March: 11.6 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in March
Harristown, IL
- Average snowfall in March: 0.98"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in March
Harristown, IL
- Average snowfall days in March: 2.6 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Harristown, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in March: 6h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in March
Harristown, IL
- Average sunshine days in March: 16.4 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in March
Harristown, IL
- Average UV index in March: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Harristown, IL
- Average cloud cover in March: 47
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in March
Harristown, IL
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
